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73795079 24 Apr 1989 | on 16 Feb 1990 | PETROLEUM PRODUCTS; NAMELY OIL AND FUEL TREATMENT, LUBRICATING OIL, GR... Class 004 Class 004 Lubricant and Fuel Products PETROLEUM PRODUCTS; NAMELY OIL AND FUEL TREATMENT, LUBRICATING OIL, GREASE, GEAR OIL | | | POWER BOOSTER CHEN, HENRY SHING CHUNG
73723968 22 Apr 1988 | on 14 Apr 1989 | PETROLEUM PRODUCTS; NAMELY OIL AND FUEL TREATMENT, LUBRICATION OIL, GR... Class 004 Class 004 Lubricant and Fuel Products PETROLEUM PRODUCTS; NAMELY OIL AND FUEL TREATMENT, LUBRICATION OIL, GREASE, GEAR OIL | |